CN103292595A - Device and method for sintering high-performance permanent magnetic ferrite products - Google Patents

Device and method for sintering high-performance permanent magnetic ferrite products Download PDF

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Publication number
CN103292595A
CN103292595A CN2013102330552A CN201310233055A CN103292595A CN 103292595 A CN103292595 A CN 103292595A CN 2013102330552 A CN2013102330552 A CN 2013102330552A CN 201310233055 A CN201310233055 A CN 201310233055A CN 103292595 A CN103292595 A CN 103292595A
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China
Prior art keywords
sintering
permanent magnetic
magnetic ferrite
height
performance permanent
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Pending
Application number
CN2013102330552A
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Chinese (zh)
Inventor
卢杨成
赵国法
卢晓梅
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ZHEJIANG KAIVEN MAGNET CO Ltd
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ZHEJIANG KAIVEN MAGNET CO Ltd
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Priority to CN2013102330552A priority Critical patent/CN103292595A/en
Publication of CN103292595A publication Critical patent/CN103292595A/en
Pending legal-status Critical Current

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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00Technologies relating to the processing of minerals
    • Y02P40/60Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes

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  • Magnetic Ceramics (AREA)

Abstract

The invention provides a device and method for sintering high-performance permanent magnetic ferrite products. The device comprises a sintering kiln and a pushing plate and is characterized in that eight holes are formed in the sintering kiln, the length of the sintering kiln is 25-35mm, the length of the pushing plate is 380-420mm, the width of the pushing plate is 380-420mm, and the height of the pushing plate is 20-40mm. The device and method for sintering the high-performance permanent magnetic ferrite products is simple in structure and convenient to use, saves energy consumption, improves efficiency, reduces pollution and improves market competitiveness, and compared with sintering of a conventional electric kiln, cost of sintering of the device and method is reduced by 50%.

Description

A kind of apparatus and method of sintering high-performance permanent magnetic ferrite product
Technical field
The invention belongs to the permanent-magnet ferrite field, specifically is a kind of apparatus and method of sintering high-performance permanent magnetic ferrite product.
Background technology
The permanent-magnet ferrite product is mainly used in electric motor of automobile, provides permanent-magnetic field in variable-frequency motor, machine driving, the sound equipment.Present sintered permanent ferrite product consumes energy greatly, yields poorly or directly coal smoke is big, seriously polluted.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of apparatus and method of sintering high-performance permanent magnetic ferrite product.
A kind of device of sintering high-performance permanent magnetic ferrite product comprises sintering oven and push pedal, it is characterized in that described sintering oven is provided with 8 holes, long 25-the 35m of described sintering oven, the length of described push pedal is 380-420mm, and wide is 380-420mm, and height is 20-40mm.
The device of described a kind of sintering high-performance permanent magnetic ferrite product is characterized in that described hole is rectangular, and the wide of hole is 400-440mm, and height is 400-420mm.
The device of described a kind of sintering high-performance permanent magnetic ferrite product is characterized in that the long 30m of described sintering oven.
The device of described a kind of sintering high-performance permanent magnetic ferrite product, the length that it is characterized in that described push pedal is 400mm, and wide is 400mm, and height is 30mm.
The device of described a kind of sintering high-performance permanent magnetic ferrite product is characterized in that the wide 420mm of being in described hole, and height is 410mm.
A kind of method of sintering high-performance permanent magnetic ferrite product is characterized in that may further comprise the steps:
1) adopting gas yield is 70-1000m3/ hour two of gas generators, the sintering oven burning coal gas sintered permanent ferrite product long to 8 hole 30m respectively, and every hole dimension is wide * height=420 * 410mm;
2) adopt the high-temperature refractory push pedal of long * wide * every of height=400 * 400 * 30mm/ to load the continuous sintering in furnace of permanent-magnet ferrite green compact product, the temperature curve that requires according to the different product different process with green compact by sintering in the time requirement propelling kiln;
3) eject pore by kiln tail air exhauster and kiln and regulate oxidizing atmosphere in the sintering oven.
The apparatus and method of a kind of sintering high-performance permanent magnetic ferrite product of the present invention, simple in structure, easy to use, save energy consumption, raise the efficiency, reduce and pollute, improve the market competitiveness, adopt the present invention to carry out sintering, than the electric kiln sintering of routine, reduce cost 50%.
Description of drawings
Fig. 1 is the schematic diagram of sintering oven of the device of a kind of sintering high-performance permanent magnetic ferrite product of the present invention;
Fig. 2 is the schematic diagram of push pedal of the device of a kind of sintering high-performance permanent magnetic ferrite product of the present invention;
Among the figure, 1-sintering oven; 2-hole; 3-push pedal.
The specific embodiment
As depicted in figs. 1 and 2, the device of a kind of sintering high-performance permanent magnetic ferrite product of the present invention comprises sintering oven and push pedal, and sintering oven is provided with 8 rectangular holes, the long 30m of sintering oven, the length of push pedal is 400mm, wide is 400mm, height is 30mm, and the wide of hole is 420mm, and height is 410mm.
Adopt low-sulfur coal to burn in gas burner, produce mixed gas, gas yield is 70-1000m3/ hour (adjustable), adopt 8 duct 30m long tunnel kilns, employing 400 * 400 * 30mm refractory material push pedal/every, inner orbit advances in the duct, and product is loaded in the push pedal.In the kiln maximum temperature be 1250-1300 ℃ adjustable, the sintered permanent ferrite product, different according to product size and the requirement of magnetic property coefficient, the push pedal fltting speed is that 40-60 minute/plate is adjustable, product is sintering in oxidizing atmosphere, and the product magnetic property behind the sintering is better than the requirement of the magnetic parameter of conventional electrical kiln sintering or coal-fired direct sintering.
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all is included within protection scope of the present invention.

Claims (6)

1. the device of a sintering high-performance permanent magnetic ferrite product comprises sintering oven and push pedal, it is characterized in that described sintering oven is provided with 8 holes, long 25-the 35m of described sintering oven, the length of described push pedal is 380-420mm, and wide is 380-420mm, and height is 20-40mm.
2. the device of a kind of sintering high-performance permanent magnetic ferrite product as claimed in claim 1 is characterized in that described hole is rectangular, and the wide of hole is 400-440mm, and height is 400-420mm.
3. the device of a kind of sintering high-performance permanent magnetic ferrite product as claimed in claim 1 is characterized in that the long 30m of described sintering oven.
4. the device of a kind of sintering high-performance permanent magnetic ferrite product as claimed in claim 1, the length that it is characterized in that described push pedal is 400mm, and wide is 400mm, and height is 30mm.
5. the device of a kind of sintering high-performance permanent magnetic ferrite product as claimed in claim 2 is characterized in that the wide 420mm of being in described hole, and height is 410mm.
6. the method for a sintering high-performance permanent magnetic ferrite product is characterized in that may further comprise the steps:
1) adopting gas yield is 70-1000m3/ hour two of gas generators, the sintering oven burning coal gas sintered permanent ferrite product long to 8 hole 30m respectively, and every hole dimension is wide * height=420 * 410mm;
2) adopt the high-temperature refractory push pedal of long * wide * every of height=400 * 400 * 30mm/ to load the continuous sintering in furnace of permanent-magnet ferrite green compact product, the temperature curve that requires according to the different product different process with green compact by sintering in the time requirement propelling kiln;
3) eject pore by kiln tail air exhauster and kiln and regulate oxidizing atmosphere in the sintering oven.
CN2013102330552A 2013-06-13 2013-06-13 Device and method for sintering high-performance permanent magnetic ferrite products Pending CN103292595A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2013102330552A CN103292595A (en) 2013-06-13 2013-06-13 Device and method for sintering high-performance permanent magnetic ferrite products

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2013102330552A CN103292595A (en) 2013-06-13 2013-06-13 Device and method for sintering high-performance permanent magnetic ferrite products

Publications (1)

Publication Number Publication Date
CN103292595A true CN103292595A (en) 2013-09-11

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104291833A (en) * 2014-09-18 2015-01-21 浙江凯文磁钢有限公司 Method of sintering permanent magnetic ferrite by utilizing coal gas

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002350063A (en) * 2001-05-29 2002-12-04 Mitsubishi Materials Corp Device and method for heating
CN2546748Y (en) * 2002-06-07 2003-04-23 李毓秀 Gas combustion industrial kiln
CN1549915A (en) * 2001-08-30 2004-11-24 Btu���ʹ�˾ Continuous furnace having traveling gas barrier
CN2861918Y (en) * 2005-11-29 2007-01-24 冯金清 Three-layer-six-opening tunnel kiln for ferrite sinter
CN101560108A (en) * 2009-05-18 2009-10-21 浙江凯文磁钢有限公司 Method for sintering high-performance permanent magnetic ferrite material by coal kiln
CN201867042U (en) * 2010-10-12 2011-06-15 中国石油化工股份有限公司 Push plate kiln
CN203413947U (en) * 2013-06-13 2014-01-29 浙江凯文磁钢有限公司 Device for sintering high-performance permanent magnetic ferrite product

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002350063A (en) * 2001-05-29 2002-12-04 Mitsubishi Materials Corp Device and method for heating
CN1549915A (en) * 2001-08-30 2004-11-24 Btu���ʹ�˾ Continuous furnace having traveling gas barrier
CN2546748Y (en) * 2002-06-07 2003-04-23 李毓秀 Gas combustion industrial kiln
CN2861918Y (en) * 2005-11-29 2007-01-24 冯金清 Three-layer-six-opening tunnel kiln for ferrite sinter
CN101560108A (en) * 2009-05-18 2009-10-21 浙江凯文磁钢有限公司 Method for sintering high-performance permanent magnetic ferrite material by coal kiln
CN201867042U (en) * 2010-10-12 2011-06-15 中国石油化工股份有限公司 Push plate kiln
CN203413947U (en) * 2013-06-13 2014-01-29 浙江凯文磁钢有限公司 Device for sintering high-performance permanent magnetic ferrite product

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104291833A (en) * 2014-09-18 2015-01-21 浙江凯文磁钢有限公司 Method of sintering permanent magnetic ferrite by utilizing coal gas

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Application publication date: 20130911